Question

The measure of angle A is 124 degrees. What is the correct classification for angle A?
A. acute
B. right
C. obtuse
D. straight

Find the complement of an angle with a measure of 72 degrees
A. 162 degrees
B. 18 degrees
C. 252 degrees
D. 108 degrees

The measure of two angles of a triangle are 36 degrees and 71 degrees. Find the measure of the third angle and classify the triangle according to its angles.
A. 199 degrees, acute
B. 199 degrees, right
C. 73 degrees, acute
D. 73 degrees, right

Answer 1

We'll be glad to check your answers.

Answer 2

b,c,d

Answer 3

Well -- that was a waste of both of our times. All three are wrong.

Answer 4

Ms. Sue you said you'd check their answers, not make them feel bad about themselves.

Answer 5

1. C, as any angle greater than 90 degrees is obtuse (unless it's a straight angle measuring 180 degrees)
2. B, as a complement of an angle means it, added to the given angle, would be 90 degrees (A supplement would be the same just for 180 degrees)
3. C, as we know that all angles in a triangle added together is 180 degrees, and 180-36-71 is 73. And since all three angles are acute in this triangle, the triangle is acute.